创建小工具项目，添加精确计时功能，采用chrono库

CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.25)
+project(utils)
+
+set(CMAKE_CXX_STANDARD 17)
+
+add_library(utils INTERFACE utils.h)

cmake-build-debug/utils.h

@@ -0,0 +1,31 @@
+#ifndef __UTILS__
+#define __UTILS__
+#include <iostream>
+#include <chrono>
+namespace utils{
+
+
+    class hdTimer{
+    public:
+        hdTimer(){
+        }
+        void tik(){
+             start =  std::chrono::high_resolution_clock::now();
+        }
+        void tok(){
+            end = std::chrono::high_resolution_clock::now();
+        }
+        double cost(){
+            return std::chrono::duration_cast<std::chrono::nanoseconds>(end-start).count();
+        }
+    private:
+
+        std::chrono::time_point<std::chrono::steady_clock> start,end;
+
+    };
+
+
+}
+
+
+#endif